--- version: rssac002v4 service: a.root-servers.net start-period: '2022-07-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5713016742 dns-udp-queries-received-ipv6: 1821227245 dns-tcp-queries-received-ipv4: 376045260 dns-tcp-queries-received-ipv6: 65118729 dns-udp-responses-sent-ipv4: 5385287735 dns-udp-responses-sent-ipv6: 1816928566 dns-tcp-responses-sent-ipv4: 311864042 dns-tcp-responses-sent-ipv6: 64468782